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SigmasTek  |  SKU: BW-12980

Sonnenschein A512/16 SR Compatible Replacement Battery

Sale price $72.00 USD Regular price $83.70
Shipping calculated at checkout.

➤ Replacement battery meets or exceeds OEM Sonnenschein A512/16 SR specifications

➤ Uses Absorbent Glass Mat (AGM) technology for enhanced performance

➤ Maintenance-free and spill-proof construction for safety and convenience

➤ U.L. Recognized and CE Certified for reliable quality assurance

➤ Includes 1-year warranty and is factory fresh for long-lasting use


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ Quick Reminder

🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.

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Battery Care Guide

Battery Usage and Maintenance Guidelines 🔋

Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.

1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Operate the device until the battery reaches approximately 20% capacity.
  • Avoid premature recharging.
  • Do not allow the battery to fully discharge during the initial cycles.

Post-Conditioning

  • Recharge the battery only when necessary.
  • These batteries are capable of approximately 500 charge cycles:
  • Once daily → ~500 days
    Twice daily → ~250 days
    Note: Even a partial recharge is considered a full cycle.

2. Sealed Lead Acid (SLA) Batteries 💡

  • No conditioning required.
  • Maintain the battery in a fully charged state; avoid complete discharge.
  • Capable of 300–400 charge cycles.
  • Expected service life: 2–3 years, depending on usage conditions.

3. Laptop Batteries (Lithium-Ion) 💻

Initial Charge

  • Fully charge the battery overnight prior to first use.

Conditioning (First 2–6 Charge Cycles)

  • Charge fully, then discharge to approximately 20% capacity.
  • Avoid complete discharge, as some devices may not detect a fully drained battery.

Post-Conditioning

  • Minimize frequent plugging and unplugging.
  • Allow the battery to discharge moderately at least once per month to maintain optimal performance.
  • Occasional cycling is recommended to sustain battery health.

Professional Recommendation

Adhering to these guidelines will enhance battery longevity and ensure reliable performance.

For further assistance regarding your battery or order, our customer support team is available to provide guidance.

Delivery and Shipping

Everything You Need to Know About Shipping with BatteryWeb (USA)

We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:

🚚 Shipping & Delivery

Most orders ship next business day (some products like sealed lead acid may take a little longer).

Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).

We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.

Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.

Transit times shown are estimates only (business days, no weekends/holidays).

🌍 Shipping Restrictions

Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.

PO Box deliveries are only available via USPS.

At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.

📦 Important Notes

Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.

If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.

💲 Currency & Pricing

All prices are shown in USD.

Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.

⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.

Disclaimer

⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).


Volts & Amps

12 Volts | 18 Ah

Terminal Type

Nut & Bolt

Sonnenschein A512/16 SR Replacement Battery

Designed as a direct-fit replacement battery for the Sonnenschein A512/16 SR, this unit delivers dependable compatibility, consistent performance, and proven reliability for emergency lighting and other critical systems. Whether you need a replacement battery for routine maintenance or to restore backup power capacity, this high-performance battery uses AGM technology and maintenance-free construction to give you a long-lasting battery solution that meets or exceeds OEM SLA battery specifications.

Key Specifications

  • Model Compatibility: Sonnenschein A512/16 SR
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free Design
  • Construction: Spill Proof Construction
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Battery Type: SLA (as referenced in product text)
  • Brand: SigmasTek
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt

Benefits

  • Durable construction: The Absorbent Glass Mat (AGM) design and spill-proof construction provide rugged, safe performance in demanding environments, making this a dependable replacement battery for systems that cannot risk downtime.
  • Long service life: Engineered as a long-lasting battery option, this unit is maintenance-free and factory fresh to deliver consistent capacity cycle after cycle—ideal for scheduled replacements and emergency preparedness.
  • High performance: Rated to meet or exceed the OEM SLA battery specifications, this high-performance battery offers reliable output for emergency lighting, alarms, and other mission-critical loads.
  • Versatile applications: Perfect for emergency lighting systems, security alarms, fire alarms, medical equipment, consumer electronics, and home & garden power needs. It also serves well in UPS, emergency power setups, and portable tools where a sealed, dependable SLA battery is required.
  • Certified safety and quality: U.L. recognition and CE certification provide assurance of safety and regulatory compliance for professional and residential installations.
  • Easy installation and compatibility: With nut & bolt terminals and 12V/18Ah capacity, this replacement battery installs easily and restores full power capability to your Sonnenschein A512/16 SR compatible systems.

Ready to replace your Sonnenschein A512/16 SR with a proven, high-quality pack? Add this replacement battery to your cart now to secure reliable backup power and protect your equipment. Purchase today and benefit from dependable performance and a 1 year warranty.


Payment & Security

Payment methods

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